CVE-2022-26497

Public Exploit

Description

BigBlueButton Greenlight 2.11.1 allows XSS. A threat actor could have a username containing a JavaScript payload. The payload gets executed in the browser of the victim in the "Share room access" dialog if the victim has shared access to the particular room with the attacker previously.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.09%
Third-Party Advisory github.com Third-Party Advisory mgm-sp.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/bigbluebutton/greenlight/blob/master/app/assets/javascripts/room.js#L352 third party advisory exploit
https://www.mgm-sp.com/en/cve-2022-26497-bigbluebutton-greenlight-xss/ third party advisory patch
http://packetstormsecurity.com/files/172143/Shannon-Baseband-acfg-pcfg-SDP-Attribute-Memory-Corruption.html

Frequently Asked Questions

What is the severity of CVE-2022-26497?
CVE-2022-26497 has been scored as a medium severity vulnerability.
How to fix CVE-2022-26497?
To fix CVE-2022-26497, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-26497 being actively exploited in the wild?
It is possible that CVE-2022-26497 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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